package com.atstudy.st;

/**
 * @version v1.0
 * @description:
 * @author: admin
 * @date: 2023/1/13 13:38
 * @copyright: 博为峰
 */
public class St05 {

    //懒汉式
    private static St05 st02;

    private St05() {
    }

    //t0 t1  St04.class 字节码文件对象
    public static St05 getSt() {
        synchronized (St05.class) {
            if (st02 == null) {
                //t0  t1
                st02 = new St05();
            }
        }
        return st02;
    }
}
